Revealed: Longest-serving Championship managers - after job changes at Sheffield Wednesday, Birmingham City & Millwall

The Championship is described as one of the hardest leagues in the world - and as a result, there have already been several managerial changes.

Bristol City and Nigel Pearson are entering the final-year of the three-year deal he signed in April 2021. He was appointed first until the end of the season after succeeding Dean Holden, and then was given the reigns on a permanent basis.

The 60-year-old has had to guide the Robins through a difficult period with several of their high-profile players moved off the wage bill. He's also had to see some of their brightest talents sold, and this summer we saw their crown jewel Alex Scott sold to AFC Bournemouth, just months after Antoine Semenyo had headed in the same direction for a smaller fee.

Scott remaining at Ashton Gate would have definitely helped City in their quest for a play-off spot, and there is a hope that the club can defy expectations and break into the top six, despite the riches of the other teams in the division. At the time of writing, city are 14th, but three points off of the play-offs, and a win against Coventry City would put them above them, and potentially into the top-half of the table.

Pearson ultimately though will be assessed on what he does come the end of the season, and it'll be interesting to see when if talks are held about a contract renewal, but ultimately they must deliver on the pitch first. The Championship is described as one of the hardest divisions to get out of, and a result several teams have already changed their managers this season.

If you're a manager, you're always wanting more time to get your ideas across, but sometimes it's just the right to part company. Gary Rowett left his job as Millwall manager on Wednesday, admitting that the time was right, and he is one of a few managerial changes over this month. Sheffield Wednesday appointed former Germany assistant coach Danny Rohl. Birmingham City meanwhile sacked John Eustace and appointed Manchester United legend Wayne Rooney.

The average shelf-life of a manager in the second tier of English football has to be just a little over two-years. Here we take a look at the numbers to see who's been in their role the longest, and the shortest.